issacmarruquinp8jo38
issacmarruquinp8jo38 issacmarruquinp8jo38
  • 02-12-2018
  • Mathematics
contestada

for the following system use the second equation to make a substitution for the y in the first equation 2x + y=6 and y=3x+4

Respuesta :

jcherry99
jcherry99 jcherry99
  • 02-12-2018

Answer:

(0.4, 5.2)

Step-by-step explanation:

Wherever you see a y in the first equation, put in 3x + 4

2x + 3x + 4 = 6        Combine like terms

5x + 4 = 6                 Subtract 4 from both sides

5x + 4 - 4 = 6 - 4      Combine like terms.

5x = 2                       Divide both sides by 5

5x/5 = 2/5                Do the division

x = 0.4                      

====================

Solve for y

y = 3x + 4

y = 3*0.4 + 4

y = 1.2 + 4

y = 5.2

Solution

(0.4 ,  5.2)  

Answer Link

Otras preguntas

Why do all enzymatic reactions need activation energy?
hwlp meeeeeeeeeeeeeeeeeeee
You want to buy a CD that costs $18.50. The sales-tax rate in your state is 4.5 percent. How much sales tax will you pay for this CD?
what is the healthiest way to eat a salad?
Select ordered pairs that's satisfy the function Y=-6x-2
Who is the 34th president
Suppose the cost of renting a scooter varies directly with the number of hours you rent it for. It costs $37.50 to rent a scooter for 5 hours. a. What is an equ
what is the answer to 29=5a+4
Which describes the status of the majority of Americans who suffer mental disorders? They do not seek help. They seek help. They commit suicide. They engage in
put these events in the order they would appear on a timeline. I. D-Day (1944) II. Dunkirk (1940) III. Canada Declares war (1939) IV. Operation Barbosa (June, 1